package week5.example;

//********************************************************************************************
// Cion.java   Author:Duanzhixuan
//
// Represents a coin with two sides that can be flipped
//**********************************************************************************************
public class Coin 
{
   private final int HEADS = 0;
   private final int TAILS = 1;

private int face;


//-----------------------------------------------------------------------------------------------------
// Sets up the coin by flipping it initially.
//-----------------------------------------------------------------------------------------------------
public Coin()
{
   flip();
}

//--------------------------------------------------------------------------------------------------------
//  Flips the coin by randomly choosing a face value.
//-------------------------------------------------------------------------------------------------------
public void flip()
{
  face = (int) (Math.random()*2);
}
//*****************************************************************************************
// Returns true if the current face of the coin is heads.
//*****************************************************************************************
public boolean isHeads()
{
  return (face == HEADS);
}

//--------------------------------------------------------------------------------------------------------
//  Returns the Current face of the coin as a string.
//---------------------------------------------------------------------------------------------------------
public String toString()
{
    String faceName;
  if (face == HEADS)
    faceName = "Heads";
else
   faceName = "Tails";

return faceName;
}
}

